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M STOTHART. WINDOW STRUCTURE.

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YM: unal wenns A room at threeopoints ofv elevation at the same -we will have the lower, middle, and upper MAT' IIEV STOTIIART, OF PHILADELPHIA, PENNSYLVANIA.

WINDOW STRUCTURE.

SPECIFICATION forming part of Letters Patent No. 583,004, dated May 18, 1897.

Application filed December 10, 1896. Serial No. 615,207. (No model.)

To all whom it may concern.-

Beit known that I, MATTHEW STOTHART, of the city and county of Philadelphia, and State of Pennsylvania, have invented an Improvement in Vindow Structures, of which the following is a specification.

My invention has reference to window structures for buildings; and it consists of certain improvements which are fully set forth in the following specification and shown in the accompanying drawings, which forni a part thereof.

The object of my invention is to provide an improved construction adapted to windowframes, whereby the upper end and lower sashes thereof may be capable of operating in the ordinaryT well-known manner and at the same time have capacity for permitting the lower sash to revolve in trunnions independently of the upper sash, or in which the upper sash may be lowered approximately into line -with the lower sash and both saslies revolve upon trunnions, so as in effect to open the entire window space for Ventilating or other purposes. By my improved construction it is possible to secure ventilation in the time, since by turning the lower sash at an angle and somewhat lowering the upper sash portions of the window structure open forthe circulation of air. Furthermore, by arranging the lower vsash at an angle ventilation may be secured, and at the same time rain is prevented from entering, since the oblique window-sash forms in eff'ect a watershed.

In carrying out my invention I pivot both the upper and lower window-sashes by trunnions to vertically-movable sash-han gers connected to the counterweights, which may be of any suitable construction. The sash-han gers are guided in vertical auxiliary guides in the window-frame, and the lower portion, at least, of the inside beads of the windowframe are madedetachable or adjustable, so that they are readily removed when it is desired to revolve the window sash or sashes. Furthermore, the parting-bead is made adjustable, so that it may be moved into the window-frame or its boxes and out of the path of the revolving window-sashes. Normally the several parts of the frame operate very similarly to any ordinary double-sash window structure.

My invention will be better understood by reference to the accompanying drawings, in which- Figure l is an elevation of a window embodying my improvements, with portions broken away to show the interior. Fig. 2 is a vertical sectional elevation thereof on line y y. Fig. 3 is a cross-sectional view of same on line :t x. Fig. 4 is a vertical sectional elevation on line w w of Fig. 3. Fig. 5 is a perspective view of the upper guide of the parting-bead. Fig. 6 is a perspective view of the sash-hanger and trunnions detached. Fig. 7 is a vertical section through the sash-han ger trunnions. Fig. 8 is a perspective view of the inside bead-lock. Fig. 9 isa perspective view of the parting-bead lock, and Fig. l0 is an enlarged view of a portion of Fig. 3.

A is the window-frame structure, and may be made of any suitable construction adapted to my improvements. It is provided with the usual counterweight boxes for the sashweights G2. The pulley-stile A' is provided on its face with two parallel supplemental guide-strips B B, the former for the lower sash and the latter forthe upper sash. Preferably these supplemental guides are formed of stamped metal secured in position by screws passing into the pulley-stile, but may, if desired, be formed of wood.4 Intermediate of them is the recess Z), into which the partingf bead I is fitted. l/Vorking in the grooved guides are the sash-hangers F, which are rectangular in shape and provided with trunnions f,.working in bearings E, secured to the side and central portion of the sashes. The sashes, when not obstructed by the parting-bead and inside bead, are free to revolve upon the trunnions f, taking the position indicated at dotted lines S S and 'I T in Fig. 2. The sash-hangers are connected in any suitable manner to the sash cords or chains, to the free ends of which are connected the counterweights G2. In practice I prefer to employ a sash ribbon or cord G, of fiat steel, which 'passes through an aperture in the sash-hanger and is looped at the bottom about a wooden IOO block e, which fits into a wedge-shaped groove F/ at the base of the hanger. `With this construction the harder the pull upon the sash cord or ribbon the tighter will be its connection with the sash-hanger. rlhis sash-ribbon passes over a pulley g at the top of the pulley-stile and connects to a block G', similar in all material respects tothe sash-hanger, and from which bleek i the weight Giis hung, as shown in Fig. 1. 30th sides of the window-frame and the sashes being made alike the same description applies thereto. The inside bead II of the window-frame, on each side of the sash, is made adjustable and preferabl y detachable or removable for the lower hall' or that corresponding to the lower sash. As shown, the lower portion of the detachable part of the inside bead is provided with a pin H2, which fits into a hole at the bottom of the windo\ '-frame, and the upper end thereof is guided in a suitable guide II. (Shown in Figs.. l and 2.) Then in position, the upper portion may be locked to the main frame by a suitable lock 7L of any description.

The form of lock which -I prefer is shown in Figs. l, 2, and 8, and consists of a slotted plate 7b2, iitted to the main frame, and a r0- tary bolt h', carried by the inside bead. The bolt is turned by a screw-d river or in any suitable manner for locking and unlocking the bead in position. \Vhi1e I prefer this construction as being excellently adapted for the purpose, it is to be understood that any means for removing the inside bead from its obstructing position for the lower sash may be employed in lieu of that shown. It is also clear that while I have only shown the lower half of the bead detachable the entire bead might be detached;

The parting-bead is likewise formed ot' an upper stationary part and a lower adjustable part I, which is pressed outward into normal position by springs 1", arranged in the grooves b and between the parting-bead and the pulley-stile.

The upper end of the adjustable partingbead I is guided in a suitable guide J. (More fully shown in Figs. l and 5.) It consists of the guide proper, J, fixed to the under part el the stationary portion of the parting-bead, and a guide cap-piece J', secured upon the upper part of the adjustable portion of the parting-bead I. The rear end of this cappieee J is provided with a stop projection j, which limits the outward movement of the bead I under the act-ion ot the springs 1f.

Any other form of guide may be employed in lieu of that shown. The lower part of the bead I is guided bya suitable guide J2. Normally this parting-bead extends outwardly suliieient to form a guide for the lower and upper sashes, as is customary, but when it is desired to rotate the said sashes upon their trunnions the said parting-bead is pushed inwardagainst the springs and locked in said position by means of lock K, which is similar to the locking-bolt L/ and is adapted to lock into a bolt-plate on the side of the partingbead. This lock is illustrated in Figs. 4 and 9. Any means of holding the parting-bead out of normal position may be employed in lieu of this lock. If desired, the lock may be similar in all material respects to the lock 7L.

The upper sash `is guided vertically, as in the ease of the lower sash, and cannot rotate upon its trunnions except when said adjustment is arranged for the lower sash; but to prevent the passage of air and rain between the sides of the upper sash and the grooved guide I3', I arrange an outside or weather strip Ii, which extends from the main frame part way out upon the sash and closes the space formed between the said parts.

XVhcn it is desired to remove a windowsash for repairing or other purposes, the sash is revolved upon its trunnions, as before described, and then one side raised or lowered suiiicient to withdraw the sash-hanger and its trunnion from the bearing-plate E on the side of the window-sash, after which the sash may be withdrawn. In this manner it isevident that the sash may be quickly removed and the slow, tedious, and laborious work heretofore necessary entirely avoided.

'hile I prefer the construct-ion shown, the details thereof may be modified without departing from the spirit of my invention.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a window structure, the combination of the main frame formed on each side with the weight-boxes having the pulley-stile provided with two verticalsupplemental grooved gu ide-strips forming a vertical space between them, adjustable parting-strips adapted to the vertical spaces between the guides so as normally to project beyond the said strips, removable inside beads upon the inside of the main frame to project beyond the grooved guides, sash-hangers guided in the grooves of the guide-strips, sash cords or bands connected to the sash -hangers and counterweighted by weights in the weight-boxes, and sashes journaled or pivoted to said sashhangers.

2. In a window structure, the combination of the main frame formed on each side with the weight-boxes having the pulley-stile provided with two vcrtical supplemental grooved guide-strips forming a vertical space between them, adjustable parting-strips adapted to the vertical spaces between the guides so as normally to project beyond the said strips, permanent or fixed weather-strips upon the upper portion of each side of the main frame outside of the guide-strips, sash-hangers guided in the grooves of the guide-strips, sash cords or bands connected to the sashhangers and eounterweighted by weights in the weight-boxes, and sashes journaled or pivoted to said sash-hangers.

f5. In a window structure, the eombiilation IOO of the main frame formed on each side with the Weight-boxes having the pulley-stile provided with two vertical supplemental grooved guide-strips forming a vertical space between them, adjustable parting-strips adapted to the vertical spaces between the guide-strips so as normally to project beyond the said guide-strips, springs to force the partingstrips out into normal position, removable inside beads upon the inside ofthe main frame to project beyond the supplemental grooved guide-strips, permanent or iixed weatherstrips upon the upper portions of each side of the main frame outside of the supplemental grooved guide-strips, means independent of the inside beads for holding. the parting-strips out of normal position, sash-hangers guided in the grooves of the guide-strips, sash cords or bands connected to the sash-hangers and counterweighted by weights in the weightboxes, and sashes journaled or pivoted to said sash-hangers.

4. In a window structure, the main frame having its sides made of the lbox-frame A having the pulleystile A', supplemental grooved guides B B' fitted to the pulley-stile and forming a groove between them, and adjustable parting-strips I movable between the grooved guides, in combination with sashhangers litted to the grooved guides and movable therein, and sashes pivoted in the sashhangers.

5. In a window structure, the main frame having its sides made of the box-frame A having the pulley stile A', supplemental groovedguides B B fitted to the pulley-stile and forming a groove between them, adjustable parting-strips I movable vbetween the grooved guides, means to hold the partingstrips out of normal position, and removable inside beads Il detachably secured to the boxframe, in combination with sash-hangers iitted to the grooved guides and movable therein, and sashes pivoted in the sash-hangers.

G. In awindow structure, the combination of the main frame having upon each side removable inside beads and adjustable partingstrips and further having vertical supplemental grooved guides upon each side of the parting-strips, and outside weather-strips upon its outer and upper half, with sashhangers guided in said grooved guides, counterweights for lifting the sash-hangers, and window-sashes journaled or hinged to said sash-hangers and sustained by the counterweights.

7. In a window structure, the main frame having each of its upright sides formed of a box-frame upon the pulley-stile of which are secured vertical supplemental grooved guidestrips extending slightly beyond the boxframe upon the inside, and an ad j ust-able parting-strip arranged between the supplemental grooved guide-stri ps and guided thereby, in combination with sash-hangers guided in said supplemental grooved guide-strips, sashes pivoted or j ournaledin said sash-han gers, and removable inside beads secured to the box-frame and extending inward beyond the inner faces of the grooved guides so as to prevent passage of dust and air between the guides and sash into the room.

8. In a window structure, the combination of the main frame having adjustable inside beads and parting-strips and vertical guides upon each side of the parting-strips, with sash-hangers guided in said guides, windowsashes j ournaled or hinged to said sash-hangers, and thin outside weather-strips carried by the main frame and Iitting into a recess in the outer face of the frame of the upper sash when in normal position.

9. In a window structure, the combination of the main frame provided with adjustable parting-strips and inside beads, with a vertically adj ustable upper window sash journaled at its sides exterior to the parting-strips and beads, counterweights for said sash, and thin outside weather-strips carried by the main frame and fitting into a recess in the outer face of the frame of the upper sash when in normal position.

10. In awindow structure, the combination of the main frame having upon each side vertical guides B, B', with intermediate adjustable parting-strips I, springs c' to force the parting-strips outward into normal position, removable inside beads I-I, means to normally hold the said beads in position, verticallymoving window-sashes, counterweighted orl sash-supporting devices, and trunnion connections between the sash-weight-supporting devices and the window-sashes arranged in the vertical grooves of the main frame.

ll. In awindow structure, the combination of the main frame having upon each side vertical guides B, B', with intermediate adjustable parting-strips I, springs t' to force the parting-strips outward into normal position, removable inside beads I-I, means to normally hold the said beads in position, verticallymoving window-sashes, counterweighted or sash-supporting devices, trunnion' connections between the sash-weight-supporting devices and the window-sashes arranged in the vertical grooves of the main frame, and outside weatherstrips L secured to the main frame and projecting over the upper sash when in normal closed position.

l2. In a window structure, the combination of the main frame having upon each side adjustable spring-actuated parting-strips and detachable inside beads and vertical fixed supplemental grooved guide-strips between them, means for holding the adjustable parting-strips out of normal position against the action of the springs, independent means for Y holding the inside bead in normal position, sash-hangers fitted to and movable in said grooved guides and counterweighted, and a sash hinged or journaled upon the said sashhangers whereby it is guided vertically independent of the parting-strips or inside beads.

13. In a window structure, the combination loo IIO

io hangers guided in said supplemental grooved guide-stripshand upper and lower windowsashes journaled or hinged upon said sashhangers.

In testimony of which invention I have hereunto set my hand.

MAT' llElV S' OTIIART Witnesses:

R. M. HUNTER, R. M. KELLY. 

